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<br /> <br />C(L..~liJO <br /> <br />ENVIRONMENTAL IMPACTS <br /> <br />" <br /> <br />General Impacts-Canal and Pumping Facilities <br /> <br />(1) Physical. The major physical impact will be the replace- <br />ment of current land use within the right-of-way with structures for <br />water transport. Cut and fill for the canal will result in movement of <br />large quantities of material and potential disposal challenges for any <br />excess quantities. Major cuts also will have potential for locally <br />significant effects on surface drainage or ground water. <br /> <br />(2) Environmental Quality. Any construction project of this <br />magnitude has the potential for, and likely will cause, short term air, <br />water, and noise pollution problems during construction. Exposure of <br />soils in construction areas, erosion on cuts and fill areas, and <br />disposal of excess materials will contribute to potential soil erosion <br />and introduction of sediment into local surface drainages. This will <br />occur during construction and somewhat during operation until exposed <br />soils are revegetated sufficiently to control sediment loss. Normal <br />construction hazards relating to air and water pollution, such as spills <br />of fuels, chemicals, construction wastes, wash water, or other <br />pollutants would be constantly present during the construction phase. <br />Aesthetic values would be greatly disrupted due to construction <br />activity, and a permanent concrete structure of unusual size would be <br />placed along a largely rural setting. During operation periodic water <br />quality problems related to algae growth may occur in the channel, and a <br />certain amount of permanent noise will be associated with pumping <br />stat ions. <br /> <br />Considering a direct impact corridor approximately 20 miles in <br />width, the transfer channel would affect no National parks, no wild and <br />scenic rivers or rivers currently under study for wild and scenic river <br />status, and no National forests. The Little Missouri River in Arkansas <br />(above Lake Greeson) and the Pease River in Texas are listed in the <br />Natural River Inventory (HCRS-April 1980) for further study as natural <br />and free flowing rivers. Neither of these would be affected by the <br />channel though they are relatively close to the impact corridor. In <br />Texas, the corridor passes within about 10 miles of the Hagerman NWR <br /> <br />045 <br />